<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="viewport"
        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0" />
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        html,
        body {
            height: 100%;
        }

        .box {
            width: 600px;
            height: 600px;
            border: 1px solid red;
            display: grid;
            grid-template-columns: 200px 200px 200px;
            grid-template-rows: 200px 200px 200px;


            grid-template-areas: 'a e e'
                                 'd e e'
                                 'g h i';


        }

        .box div:nth-child(1){
            grid-area:a;
        }

        /* .box div:nth-child(5){
            grid-area: e;
        } */
        .box div:nth-child(2){
            grid-area: e;
        }


    </style>
</head>

<body>

    <div class="box">
        <div>1</div>
        <div>2</div>
        <div>3</div>
        <div>4</div>
        <div>5</div>
        <div>6</div>
        <!-- <div>7</div> -->
        <!-- <div>8</div>
        <div>9</div> -->

    </div>

</body>

</html>